baber/WOPTO huggingface dataset:
Patent GB-702494-A (GB)
Title: Improvements in or relating to electrostatic machines
IPC: H02N1/08
Filed: 1951-10-05
Abstract: 702,494. Electrostatic generators. CENTRE NATIONAL DE LA RECHERCHE SCIENTTFIQUE. Oct. 5, 1951 [Oct. 9, 1950; Feb. 20, 1951], No. 23221/51. Class 35 An electrostatic generator of the conducting charge carrier type comprises a series of units on the same shaft and connected in cascade so that the first unit is excited from an external exciter and successive units are excited by the unit previously situated in the cascade, each unit carrying the load current. In the form shown, the generator comprises four separate stages comprising insulating rotors 1 carrying charge carrying plates 3, 4 formed as thick cylindrical segments of conducting material and connected to collector segments 5, 6 engaged in turn by charging and discharging brushes 7, 8. The stators consist of charge inducing plates 9 and discharging screens 10, both formed as thick conducting cylindrical segments. Each unit is enclosed in a cylindrical metal screen 11 and the whole machine is enclosed in a gas-filled tank. The external generator 14 which, in this form, carries the whole load current of the machine, charges the screen 11 and the charging brush 7 of the first machine, the charge inducing plate 9 being earthed and the screening plate 10 being energized from the output brush 8 of the unit. Successive stages are similarly energized from the output of the previous stage and the load 12 is fed between the last output brush and earth. In order to ensure a substantially uniform voltage distribution between the generating units a resistance voltage divider may be connected across the machine output and the charge inducing plates 9 connected to tapping points of uniformly increasing potential. It is stated that the divider may be replaced by an auxiliary brush disposed at a suitable angle on each unit. In a modification, Fig. 1 (not shown), in which the exciter merely excites the machine and does not carry the load current, it charges the charge inducer of the first unit negatively, the outer screen and input brush being earthed or connected to the output brush of the previous unit. In practice the units of the machine are assembled vertically with the output terminal at the top and a suitable construction with the driving motor included at the bottom of the gas-filled tank is described. In the case of very high voltage machines the outer tank may be of insulating material and large smoothly curved output electrodes are used. It is stated that the units may be constructed of flat segmental plates or round bars instead of cylindrical segments.
Patent GB-1185001-A (GB)
Title: Heat Barrier in Irradiation Capsules
Inventor: GEISER RICHARD
IPC: G21K5/08
Filed: 1968-05-16
Abstract: 1,185,001. Sample container. EUROPEAN ATOMIC ENERGY COMMUNITY. 16 May, 1968 [19 May, 1967], No. 23233/68. Heading H5R. [Also in Division G6] In irradiating a material, the sample 1 is placed in a container or capsule having double walls 2, 3 separated by a gas filled space 4 acting as a thermal barrier, and to control the width of the space, there is attached to one of the walls, e.g. 2, a layer of metal strip 5 or wire (Fig. 2, not shown) of known thickness to produce a gap having the desired dimensions. As shown the strip or wire is preferably secured to the outer skin of the inner capsule and is wound around the capsule. The strip or wire may be of constant thickness, but if desired a plurality of strips or wire of different thickness may be used (Fig. 3, not shown) so as to produce a space of varying thickness and give a heat flow path through the space of varying configuration. If desired, the variation in width of the space may be periodic. The desired width of the space may be obtained by using two or more layers of strip or wire on all or part of the skin.
Patent GB-236146-A (GB)
Title: Manufacture of barbituric acid derivatives
Filed: 1924-10-01
Abstract: The process of the parent Specification is modified by the introduction of the b -chlorallyl instead of the b -bromallyl group. For this purpose 1-halogen-2-chloro-2 : 3-propylene is employed or there may be used a compound CH2 X. CHCl. CH2 X (in which X represents halogen), hydrogen halide being eliminated.  The products show pronounced hypnotic activity. According to the example, b -monochlorallylisopropylbarbituric acid is prepared by heating a solution of isopropylbarbituric acid in caustic soda with 1 : 2-dichloro-2 : 3-propylene or by treating the sodium salt of isopropylbarbituric acid with 1-bromo-2-chloro-2 : 3-propylene.
Patent GB-1246909-A (GB)
Title: Method and apparatus for welding together tubes of plastics material
Inventor: NANTES GEOFFREY CHARLES
IPC: B29C65/20
Filed: 1969-05-07
Abstract: 1,246,909. Lobster pot. G. C. NANTES. 29 April, 1970. [7 May, 1969], No. 23237/69. Heading A1A. [Also in Divisions B3, B5 and F2] A lobster pot made from plastics tubing, see Division F2, comprises circular members 15 joined to longitudinal members 16, Fig. 9, on plastics loops 17, with ties 18, joined to on wooden base 19, Fig. 10.
Patent GB-656628-A (GB)
Title: Improvements in and relating to metal rectifiers
IPC: H01L29/00
Filed: 1948-09-03
Abstract: 656,628. Dry-contact rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 3, 1948, No. 23282. Convention date, Sept. 4, 1947. [Class 37] A rectifier comprising a base electrode 11 of iron or aluminium with a thin film of bismuth having a coating 12 of selenium has on the selenium a soft solder coating 13 forming a counter-electrode, which is partly covered by an annular thin coating 14 of insulating material, e.g. of non-conducting varnish, paint, paper, cellulose acetate, mica or paper coated with polystyrene. A layer of metal 15 externally coats the insulating annulus 14 and contacts the counter-electrode 13. An external coating 16 of insulating material covers the exposed face of the rectifier except the portion 17 overlying the insulating annulus 14. The rectifiers 1 are circular with central apertures for mounting on a rod 3 between end nuts 5. Circular springy contact plates 2 have downwardly bent edges pressing on the copper layers 15 on the insulating strips 14. Conductive washers 10 complete a circuit through the stack. Specifications 564,244 and 608,216 are referred to.
Patent GB-1474646-A (GB)
Title: Core support structure for a fast reactor
IPC: G21C9/016
Filed: 1975-05-28
Abstract: 1474646 Reactors COMMISSARIAT A L'ENERGIE ATOMIQUE 28 May 1975 [25 June 1974] 23314/75 Heading G6C A core support structure for a sodium-cooled, fast reactor comprising a horizontal diagrid supporting the reactor core fuel assemblies, has a tundish unit or core catcher mounted beneath the diagrid in such a manner as to ensure its direct cooling in the event of an accident condition involving melt-down of the reactor core. As shown in Fig. 2, the diagrid 7 is carried by a flooring structure 8 formed by an open metallic assembly, the periphery of which is applied against the internal surface of the reactor primary vessel 3, while beneath the diagrid 7 is fixed the tundish unit 9 which comprises a cylindrical shell 10 with lateral openings 10a and closed by a conical bottom wall 11 provided with holes 11a. The tundish unit 9 contains a receiving tray 12 for collecting the core in the event of a melt-down and formed by a series of successive cups each having a conical transverse profile and forming a series of troughs arranged in cascade from one cup to the next. The cups are provided with bottom openings 12a which permit free circulation of the liquid sodium through the tray 12. The interior of the tundish unit 9 is divided by a thin horizontal metallic plate 13 into two zones 14, 15. The zone 14 collects sodium leakages from a high pressure collector 28 at the level of recesses provided within the diagrid 7 for accommodating the fuel assembly end-fittings 17, the cold sodium being supplied under pressure through ducts 29 to an annular space 30 surrounding the internal surface of the primary vessel 3 and delimited by a parallel baffle-plate 31. Within the zone 15, the cold sodium at a lower pressure ensures suitable cooling of the tray 12 and of the diagrid support structure 8 during a normal period of reactor operation. In the event of a melt-down of the reactor core 6 and its collection within the tray 12 after destruction of the separating plate 13, a natural circulation of sodium by convection is automatically established around the tray 12 by causing the zone 15 to communicate with a cold sodium collector 24 located between the primary vessel 3 and an inner vessel 19 by means of a series of communication ducts 32 formed through the diagrid support structure 8. The ducts 32 are distributed around the structure 8 in such a way as to ensure that the hot sodium is permitted to flow towards the cold collector 24 through some of the ducts whilst the remaining duets serve to return the sodium towards the tray 12 after cooling by passing through and mixing within the collector, as illustrated in Fig. 2 respectively on the left- and right-hand sides of the tundish unit 9.
Patent GB-154746-A (GB)
Title: Improvements in lamp chimneys
IPC: F21V37/00
Filed: 1919-09-23
Abstract: 154,746. Master, S. D. Sept. 23, 1919. Chimneys. - The chimneyholder is imperforate, and the chimney is so constructed that the air passes to the burner down between two concentric tubes, or through one or more passages formed internally in or externally on the chimney. In one form, the chimney consists of two concentric parts a, b, connected by a perforated partition c as shown in Fig. 1. In a second form, the chimney is formed with more side passages e, such as are shown in Figs. 7 and 9. The air is admitted to the side passages e, or to the annular passage between the parts a, b, below the exit for the combustion gases, and the exit end of the chimney is coned or contracted.
Patent GB-332752-A (GB)
Title: Improvements relating to the cutting of blanks from metal or other sheets
IPC: B21D28/06
Filed: 1929-07-31
Abstract: 332,752. Humphris, F. July 31, 1929. Perforating. - A sheet of metal A from which a series of regularly spaced blanks is to be cut or punched has portions b cut from its edges a of a shape to correspond to part of the form of the blanks which are to be cut, and at the correct longitudinal and transverse pitch with respect to these blanks. Cutting of half-blanks at the edge of the material is thus avoided, and sheets may be fed in succession through the machine in contact with each other. The sheets are prepared in a separate machine with cutters of the required contour.
Patent GB-1260950-A (GB)
Title: Improvements in the formation of collars on plastics sleeves
Inventor: CARROLL AUBREY GEORGE
IPC: B29C53/30
Filed: 1969-05-08
Abstract: 1,260,950. Collars on plastics/metal rods. AURIOL (GUILDFORD) Ltd. 5 Aug., 1970 [8 May, 1969], No. 23514/69. Heading B5A. A collar is formed on a plastics-sleeved metal rod by locating it in two dies on either side of a heating unit, securing one end of the rod, heating the sleeve between the dies to soften the plastics and moving one die along the rod to deform the sleeve and form the collar, before allowing the collar to reset. Heating may be effected by a R.7. induction coil. One die may be stationary, the other movable, and may be contoured to mould the material. The plastics may be polyvinyl chloride and the rod steel.
Patent GB-666055-A (GB)
Title: Removal of hydrogen sulphide from gases
IPC: C10K1/12
Filed: 1949-09-13
Abstract: 666,055. Purifying gas. BROWN, J. T. Sept. 7, 1950 [Sept. 13, 1949], No. 23648/49. Class 55 (ii). In the removal of hydrogen sulphide from gas by means of a number of washings with a suspension of hydrated oxide of iron or carbonate or basic carbonate of iron in aqueous alkali, the final purification is effected in a chamber or chambers packed with grids, coke, rings or the like, this treatment being preceded by a washing to remove the bulk of the hydrogen sulphide, in a chamber or space which is free of packing and does not contain bubble trays. The deposition of solids within, and clogging of, the packing is thus avoided. A preliminary washing which results in the gas containing less than 150 and preferably not, more than 50 grains of hydrogen sulphide per 100 cubic feet at N.T.P. is mentioned. As shown, the chambers 12, 13 are free from packing and 15, 16 are packed. The washing liquid is supplied from the main 17 to each chamber and is collected by a main 19 for delivery to a regenerative system, gas seals 20 being provided between the discharge pipes 18 and the main 19. The gas is supplied through the pipe 21 and passes upwardly through each chamber in succession, being finally discharged through a pipe 23. Intercepting means for delaying the descent of the liquid without placing an obstruction in the chambers 12, 13 may comprise bars 31 or trays 27. The bars 31 may be of triangular section and are arranged in staggered rows, the spacing of the bars being not more than n-1 times the maximum width of a bar where n is the number of rows. The space between rows is preferably not less than the spacing between bars. The lower edges of the bars may be serrated to form drip points. The trays 27 may be sloped downwardly but must be sufficiently spaced to offer little resistance to the passage of gas between them. Washing of the gas may be effected in packed and unpacked sections of the same chamber. Specifications 153,665, 238,172, [both in Class 55 (ii)], 424,414 and 611,917 are referred to.
Patent GB-1589100-A (GB)
Title: Apparatus for supporting and guiding a tubular workpiece which is to be sewn
IPC: D05B33/00
Filed: 1978-05-25
Abstract: The tubular workpiece (3), the orifice edge of which is to be sewn by means of the needle (4) of a sewing machine (1, 2), is stretched on two balls (5). Their horizontal axles (6) are fastened to yokes (7) which are pivotable about vertical axes by means of motors (8). The motors (8) are fastened to holders (9) which are pivotable about horizontal shafts (11) by means of motors (12). The balls (5) have a zone with a higher coefficient of friction in the region of their equator on which the workpiece (3) rests. As a result of the adjustment of the balls by means of the motors (8, 12) in respect of the position of their equatorial zones, the tubular workpiece can be oriented in its direction of movement differently from the sewing direction, in order to align the orifice edge to be sewn with the needle (4). <IMAGE>
Patent GB-1455405-A (GB)
Title: Conference units
IPC: H04M3/56
Filed: 1975-05-31
Abstract: 1455405 Automatic exchange systems POST OFFICE 31 May 1975 23740/75 Addition to 1409610 Heading H4K The conference circuit of Specification 1,409,610 is modified by use of an adding circuit for the PCM codes comprising N-2 binary adders each capable of adding only two binary words where N is the number of conferences, N being greater than 3. To conference 5 subscribers, the linearized PCM words for each of the five subscribers are supplied in parallel format to a set of shift registers 224-226 equal in number to the number of bits in a PCM word. During a first sub time slot the sum of the words for subscribers 2-5 is performed as three stages by adders 234, 240 and 235. At the beginning of the next sub time slot the contents of the shift registers are shifted by one stage and the addition for subscribers 3-5 and 1 is performed, this process being continued until all five additions have been performed. Such an adding arrangement reduces the number of binary adders needed by 1 as compared with the adding arrangement disclosed in Specification 1,409,610 (Fig. 1, not shown).
Patent GB-880003-A (GB)
Title: Improvements relating to worm and nut mechanisms
IPC: F16H25/22
Filed: 1956-12-07
Abstract: 880,003. Screw and nut mechanisms. BISHOP, R., JOHNSTON, R. H., and WHITLOCK, G. B. R. Dec. 4, 1957 [Dec. 7, 1956], No. 24037/59. Divided out of 880,001. Drawings to Specification. Class 80 (3). The subject-matter of this Specification is identical with that of Specification 880,001, but the claims are directed towards the guiding of the balls into the return passage. Specification 880,002 also is referred to.
Patent GB-1420092-A (GB)
Title: Recessed head threaded fastener and associated tool
IPC: F16B23/00
Filed: 1972-05-23
Abstract: 1420092 Heading; screwdrivers T J BROOKS (LEICESTER) Ltd 16 May 1973 [23 May 1972] 24071/72 Headings B3H and B3N [Also in Division F2] A tool-receiving recess 13 in the head 12 of a screw 10 comprises a central cavity 14 from which a plurality of grooves 15 extend generally radially, the back-out side walls 17 of the grooves 15 lying in true radial planes, and the driving side walls 19 being displaced from true radial planes and being so located relative to the screw's axis of turning 16 that the maximum torque which can be transmitted through the back-out side walls 17 from a driving tool is greater than that which can be transmitted through the driving side walls 19, the maximum driving torque being a major porportion, e.g. 90 to 95%, of the maximum back-out torque. A driving tool and a heading tool for punching the recess, shaped complementary to the recess, are also described and claimed.
Patent GB-256079-A (GB)
Title: An improved method of and material for surfacing roads, ways, tennis courts, playgrounds, floors and roofs
IPC: C08L95/00
Filed: 1925-11-24
Abstract: 256,079. Wellings, G. A., and Johnstone, E. Nov. 24, 1925. Compositions containing bitumen, cork, and sulphur are used for surfacing roads. floors, roofs. tennis courts, &c. A typical composition is made by adding 40 parts of cork in small particles to a heated mixture of 20 parts of sulphur and 40 parts of bitumen with the addition of flux oils if necessary. The mixture may be applied to the surface either in the form of sheets or by spraying or spreading it. In a modification the hot mixture of bitumen and sulphur is sprayed or painted on the surface and the cork is subsequently strewn thereon.
Patent GB-1076675-A (GB)
Title: Improvements in and relating to methods of measuring and apparatus responsive to plasma density
IPC: G01N27/22
Filed: 1965-06-08
Abstract: 1,076,675. Electrophysical measurement. JAPAN ATOMIC ENERGY RESEARCH INSTITUTE. June 8, 1965 [June 5, 1964], No.24165/65. Heading G1N. The density of a plasma is determined by using its dielectric or impedance effect in a capacitorcell or coil, forming part of a frequency or phase discriminator. Conventional discriminator circuits may be used Figs. 1a..c (not shown) fed with a fixed frequency input and providing a D. C. output proportional to the detuning of their resonant circuits by the capacitor cell. Alternatively the capacitor cell may be connected in the circuit of one of the grids of a gated beam tube used as a phase discriminator.
Patent GB-1141391-A (GB)
Title: Preparation of 4-chloro-2-pyrazolin-5-ones and their use
Inventor: MONBALIU MARCEL JACOB
IPC: G03C7/384
Filed: 1966-05-31
Abstract: 1,141,391. 4 - Chloro - 2 - pyrazolin - 5 -one derivatives. GEVAERT-AGFA N.V. 30 May, 1967 [31 May, 1966], No. 24188/66. Heading C2C. [Also in Division G2] 4 - Chloro - 2 - pyrazolin - 5 - ones are obtained by chlorinating 2-pyrazolin-5-ones by means of sulphuryl chloride or chlorine in the presence of a Friedel-Crafts metal halide catalyst. The invention also comprises compounds of the formula wherein R represents an aliphatic, aromatic or heterocyclic radical, including said radicals in substituted form, and R<SP>1</SP> represents an amino group, including substituted amino groups. The Friedel-Crafts catalyst employed may be aluminium chloride and the reaction may be effected in a solvent at a temperature of 40- 80‹ C. 3-Acylamino-4-chloro-2-pyrazoline-5-one derivatives which fall within the scope of the above general formula may also be prepared by N-acylation of the corresponding 3-amino-4- chloro-2-pyrazolin-5-one compound with an acid chloride or anhydride.
Patent GB-1097364-A (GB)
Title: Oxonation of cyclododecatriene to c alcohol
Inventor: CULL NEVILLE LEVERNE
IPC: C07C29/16
Filed: 1965-06-08
Abstract: Cyclododecyl carbinol is prepared by reacting cyclododecatriene with carbon monoxide and hydrogen at superatmospheric temperature and pressure in the presence of a catalyst consisting of cobalt carbonyl modified by less than a stoichiometric amount of a trialkyl phosphine having 1-6 carbon atoms in each of the alkyl groups so as to produce a mixture of cobalt octacarbonyl and a phosphine complex in which the weight ratio of cobalt as cobalt carbonyl to cobalt as phosphine complex is from 1:0.5 to 1:5. Preferred catalysts are those consisting of a mixture of cobalt octacarbonyl and a hydrocarbon soluble complex of formula [CO2(CO)6(PR3)2] or [(CnH2n- 1)Co(CO)y(PR3)x] in which R is a C1-C6 alkyl radical, n is an integer from 3 to 6, x is 1 or 2 and y is 1 or 2, with the proviso that when x is 1, y is 2 and when x is 2, y is 1.  The catalysts may be obtained by condensing the trialkyl phosphine with a substantially equally molar amount of cobalt octacarbonyl and mixing the product with further quantities of cobalt carbonyl.
Patent GB-851889-A (GB)
Title: Improvements relating to pipe couplings
Inventor: CLARK DENNIS REGINALD
IPC: F16L19/02
Filed: 1958-07-28
Abstract: 851,889. Pipe couplings. A.E.I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. July 20, 1959 [July 28, 1958], No. 24241/58. Class 99(1). In a remotely controlled arrangement for coupling together pipes 1, 2 in a nuclear reactor, the pipe 2 communicating with a reactor control rod and the pipe 1 containing an actuator member, a flange 3 on the pipe 1 is inserted into the bore of an extension 5 on the pipe 2 and is clamped against a shoulder 4 thereon by a clamping ring 7 screwed into the extension 5, dog clutch teeth 9 on the ring 7 co-operating with similar teeth on a sleeve mounted on the pipe 1 and rotatable through gearing by an electric motor. As shown, a plastic ring 8 containing a dry lubricant may be inserted between the flange 3 and the ring 7. A sleeve 10 is similarly clamped against the pipe 2 by a clamping ring 13 which screw-threadedly engages the extension 5.
Patent GB-247622-A (GB)
Title: Collapsible dressers, sideboards, and similar furniture
IPC: A47B43/00
Filed: 1924-10-13
Abstract: 247,622. Atholl, (J. G. S. Murray) Duke of. Oct. 13, 1924. Folding and collapsable cabinets. - In a folding dresser, sideboard, or like article of the type wherein the sides and top are hinged to the back, the top is hinged to fold upwardly against an extension of the back and has means on its underside to engage the sides. In the form shown in erected position in Fig. 2 and collapsed in Fig. 4. the top c has fillets c<2>, c<3> between which the sides b are held when erected, and runners c<4> for two sliding drawers. The drawers e are hinged to fold outwardly upon the sides, and removable shelves f fitted with slotted metal plates f' are supported within the structure by screws or the like projecting from the sides. In a modification the back extends upwardly to support a number of hinged shelves.